Allow to delete non-migrated previews instead of moving them

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

core/Command/Preview/Repair.php

@@ -76,7 +76,8 @@ class Repair extends Command {
 			->setName('preview:repair')
 			->setDescription('distributes the existing previews into subfolders')
 			->addOption('batch', 'b', InputOption::VALUE_NONE, 'Batch mode - will not ask to start the migration and start it right away.')
-			->addOption('dry', 'd', InputOption::VALUE_NONE, 'Dry mode - will not create, move or delete any files - in combination with the verbose mode one could check the operations.');
+			->addOption('dry', 'd', InputOption::VALUE_NONE, 'Dry mode - will not create, move or delete any files - in combination with the verbose mode one could check the operations.')
+			->addOption('delete', null, InputOption::VALUE_NONE, 'Delete instead of migrating them. Usefull if too many entries to migrate.');
 	}
 
 	protected function execute(InputInterface $input, OutputInterface $output): int {
@@ -94,10 +95,15 @@ class Repair extends Command {
 		}
 
 		$dryMode = $input->getOption('dry');
+		$deleteMode = $input->getOption('delete');
+
 
 		if ($dryMode) {
 			$output->writeln("INFO: The migration is run in dry mode and will not modify anything.");
 			$output->writeln("");
+		} elseif ($deleteMode) {
+			$output->writeln("WARN: The migration will _DELETE_ old previews.");
+			$output->writeln("");
 		}
 
 		$instanceId = $this->config->getSystemValueString('instanceid');
@@ -250,16 +256,29 @@ class Repair extends Command {
 						$progressBar->advance();
 						continue;
 					}
-					$section1->writeln("         Move preview/$name/$previewName to preview/$newFoldername", OutputInterface::VERBOSITY_VERBOSE);
+
+					// Execute process
 					if (!$dryMode) {
-						try {
-							$preview->move("appdata_$instanceId/preview/$newFoldername/$previewName");
-						} catch (\Exception $e) {
-							$this->logger->logException($e, ['app' => 'core', 'message' => "Failed to move preview from preview/$name/$previewName to preview/$newFoldername"]);
+						// Delete preview instead of moving
+						if ($deleteMode) {
+							try {
+								$section1->writeln("         Delete preview/$name/$previewName", OutputInterface::VERBOSITY_VERBOSE);
+								$preview->delete();
+							} catch (\Exception $e) {
+								$this->logger->logException($e, ['app' => 'core', 'message' => "Failed to delete preview at preview/$name/$previewName"]);
+							}
+						} else {
+							try {
+								$section1->writeln("         Move preview/$name/$previewName to preview/$newFoldername", OutputInterface::VERBOSITY_VERBOSE);
+								$preview->move("appdata_$instanceId/preview/$newFoldername/$previewName");
+							} catch (\Exception $e) {
+								$this->logger->logException($e, ['app' => 'core', 'message' => "Failed to move preview from preview/$name/$previewName to preview/$newFoldername"]);
+							}
 						}
 					}
 				}
 			}
+		
 			if ($oldPreviewFolder->getDirectoryListing() === []) {
 				$section1->writeln("         Delete empty folder preview/$name", OutputInterface::VERBOSITY_VERBOSE);
 				if (!$dryMode) {